Base | Representation |
---|---|
bin | 111110111010… |
… | …0110100111101 |
3 | 2022001210001202 |
4 | 1331310310331 |
5 | 31421000011 |
6 | 3134545245 |
7 | 550235243 |
oct | 175646475 |
9 | 68053052 |
10 | 32984381 |
11 | 17689721 |
12 | b068225 |
13 | 6aab4b1 |
14 | 4548793 |
15 | 2d6823b |
hex | 1f74d3d |
32984381 has 4 divisors (see below), whose sum is σ = 33287100. Its totient is φ = 32681664.
The previous prime is 32984333. The next prime is 32984383. The reversal of 32984381 is 18348923.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 18348923 = 757 ⋅24239.
It can be written as a sum of positive squares in 2 ways, for example, as 24661156 + 8323225 = 4966^2 + 2885^2 .
It is a cyclic number.
It is not a de Polignac number, because 32984381 - 214 = 32967997 is a prime.
It is a super-2 number, since 2×329843812 = 2175938779906322, which contains 22 as substring.
It is a Duffinian number.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (32984383) by changing a digit.
It is a pernicious number, because its binary representation contains a prime number (17) of ones.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 151196 + ... + 151413.
It is an arithmetic number, because the mean of its divisors is an integer number (8321775).
Almost surely, 232984381 is an apocalyptic number.
It is an amenable number.
32984381 is a deficient number, since it is larger than the sum of its proper divisors (302719).
32984381 is a wasteful number, since it uses less digits than its factorization.
32984381 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 302718.
The product of its digits is 41472, while the sum is 38.
The square root of 32984381 is about 5743.2030261867. The cubic root of 32984381 is about 320.7028204898.
The spelling of 32984381 in words is "thirty-two million, nine hundred eighty-four thousand, three hundred eighty-one".
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